9.64 For each of the following reactions, provide a complete, detailed mechanism and predict the products, including stereochemistry where appropriate. Determine whether the reaction will yield exclusively one product or a mixture of products. For each reaction that yields a mixture, determine which is the major product. (a) OTs H3C (b) OTs H3C (c) OTs H3C NaCN (CH3)3CONA ? CH;CH,OH DMF DMSO (d) (e) CI CH3 (f) OTs H3C Na,CO3 NaOCH,CH3 ? CH;CH,OH, A CH;CH,OH, A CH3 DMSO, 95 °C

please provide all steps and explanations as well if possible please

3) Predict the major product(s) for the following reactions with appropriate stereochemistry wherever applicable. (a) (b) + H3CO OCH 3 H₂O, H₂SO4 50°C

Which of the following compounds is a major product of the reaction sequence below? OH (1) Mg, ether Br (2) (A) (B) (3) H*/H2O он (C) (D) Compound C Compound A Compound B OCompound D

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Which of the following is a major product of the reaction shown? (CH3),CHCH;NH2 **** HN- H* (cat./H;0 (A) (B) N- (C) (D) Compound D OCompound C O Compound A Compound B

Give the structure of the major product with  proper mechanism for each step.

What epoxide and organometallic reagent are needed to synthesize each alcohol below? Pay close attention to the correct representation of stereochemistry, where appropriate. 3. (а) "OH desired ерохide organometallic reagent product (b) H но desired product ероxide organometallic reagent 4. A CHEM 245 student wants to synthesize some ethylene glycol to use as antifreeze in his radiator this winter. He proposes the following reaction to his instructor, who quickly explains that this reaction won't work as proposed due to the student's choice of reagent. 1) NaH 2) H2O OH Но a) Why can't sodium hydride (NaH) be used as the nucleophile in the reaction above? b) Propose an alternate reagent that COULD be used with the ethylene oxide to successfully give the desired ethylene glycol product.

Give the major organic product for each of the following reactions. Write NR is a reactionwill not occur.

Give the structure of the alkenes which will generate the following products under the reaction conditions indicated